Locking-valve.



R I EBE.

Patented Sept 4, 19125 E. W. ROGERS 62 T. C.

LOCKING VALVE.

APPLICATION FILED NOV. 4, I916- UNITED T OFFICE.

EDWIN WILLIAM ROGERS AND THEODORE G. RIEBE, OF CHICAGO, ILLINOIS, ASSIGNOBS TO ROGERS MOTOR LOOK COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

To all whom it ma concern:

Be it known t at we, EDWIN WILLIAM Rocnns and THEODORE C. RIEBE, citizens of the United States, and residents of Chicago, 5 in the county of Cook and State of Illinois, have invented certain new and useful Im .provements in Locking-Valves, of which the sipllowing is a specification. 50hr invention relates to automobile locklflevicesand has particular reference to ment in the construction shown i i A A t to E. W. Rogers, No. 1,171,980, p a, 15, 1916. 7 4 he, ofLthe principal objects of thepresent 1, vccnstruction is to simplify and improve the ation of the mechanism shown in the t; just referred to. The number of H is lessened, assembling is made more 'leand the parts may be made of such size as to make the device strong in 'fiii'vicc. a

III the resent. device the spring which serves to e ongate th shaft acts also as the locking device to pr vent the return of the 26,, Shaft after it has been elongated.

The invention will be more readily understood by reference to the accompanying drawings, .wherein t Figure 1 is aside elevation ofd valve such in as contemplated by us, the salne being located ih an engine manifold;

2 is a sectional view on the line 2--2 f 1 I j 3 is a sectional view on the line 3-3 It a; ig, and l g .Fi 4 isan. enlar ed fragmentary seccal fit view showing t e form of connection the spring and the shaft.

5 Ore particularly to the drawa each that the locking device ch12. to be mounted between the flOilliM a manifold pipe 12, by suithcldmg zneans such as the bolt 13. Steel in, indicated at 14., 1" a ,the, but is in place, thus I; I the destruction of the at e removal of .the valve is preferably formed in two which re united by means of i 7 screws 1 A shim or spacer 18 between the twohalves and serves cc within which the shutter Specification of Letters Patent.

LOOKING-VALVE.

Patented Sept. 4, 1917.

Application filed November 4, 1816. Serial N 0. 129,486.

19 may operate. This shutter is rotatable on the end 20 of the operating shaft 21 as a center. Pinned to the end of the shaft is an arm or crank 22, having a lateral pin or PI'OJBCiZiOIl 23, the end of the arm and the pin lying between two lugs or ears 24, which are secured to the shutter by means of the rivet 25. A recess 26 which acts as a stop is formed in the casing, and a similar recess in the shutter, these recesses being in register when the shutter is in closed position. If, when the shutter or valve IS in that position the shaft be elongated, the pin 23 will enter the recesses 26, 27, and securel lock the shutter in its closed position. coil-sprin 28 is mounted on the end 'of the shaft am has a tendency to lengthen the shaft and to pull the pin 23 into the recesses referred to. Furthermore, the end 20 of the shaft is provided with a peripheral groove 29, which normally lies to one side of the shutter. If, however, the shaft is moved longitudinall under the action of the spring 20, t e elongated and transversely bent end 30 of the spring will occupy the groove 29, as best shownin Fig. 4, and will prevent the return of the shaft until the easing is taken apart and the end of the spring disengaged from the groove. If, therefore. an unauthorized person should attem t to operate the valve by severing the she. t 21, the spring 28 would move the shaft longi- .ti dinally, causing the pin to engage the rec' ws 26 and lock the valve against opening movement, while the end of the spring 30 would drop into the groove and preventthe return of the shaft to its original osition.

By such means it will beseen that t e shutter is safe against tampering in that manner.

coiipemtc in an abnormal position of said shaft, substantially as described.

2. In a locking device, the combination of a casing, a shutter mounted therein, a shaft, :in arm opcrutivcly engaging said shutter, a pin on said arm, said. casing having :1 recess so located as to register with said pin when the shutter is in closed position;

3. 1n a locking device, the CUlUlLllIllltlUll of n shutter, a shaft, :1 crank carried by the shaft, said crank having a projection and lining in slirlnhle engagement. with the shutter, and means operative upon the severing of the shaft and when the shutter is in rlosed position for mining said crank and musing the engagement of said lirojcction with a stop whereby said shutter is locked, substantially as described.

4. In a locking device, the combination of a casing, a shutter pivot/ed therein, a shaft in said casing, an arm on said shaft, a looking pin carried by said arm, said casing having a recess with which said pin is in reg; istei' in the closed position of said shutter, and a spring tending to move said pin into said recess, said shaft having a peripheral groove with which a portion of said spring may engage when said pin en ages said recess, substantially as describerf Signed at Chicago, Illinois, of November, A. D. 1916.

EDWIN WILLIAM ROGERS. THEODORE C. RIEBE. Wi tnensws inAs. F. MURRAY, T. D. BUTLER.

this 2nd day 85 

